Trolley.



PATENT ED 00m 9, 1906.

H. WEST.

TROLLEY. APPLIOATION FILED JULY 20,1903.

2 SHEETS-SHEET 1.

(W 9 Wises s No- 832,712. PATENTED 00119, 1906.

H. WEST.

TROLLEY. APPLICATION FILED JULYZO, 1903.

' 2 SHEETS-SHEET 2,

)7??? AGE/beg x 1 HENRY WEST, OF GALESBURG, ILLINOIS.

TROLLEY.

Specification of Letters Patent.

Application filed July 20,1903. Serial No. 166,292.

To all whom, it may concern;

Be it known that I, HENRY WEST, a citizen of the United States, residingat Galesburg, in the county of Knox'and State of Illinois, have inventedcertain new and useful Improvements in Trolleys, of which the followingis a specification.

The present invention relates partly to the construction of thetrolley-wheel and partly to the construction of the fittings by Which itis secured to the trolley-pole or other supporting device.

It consists in the features of novelty that are hereinafter describedwith reference to the accompanying drawings, which are made a parthereof, and in which Figure l is an elevation of a trolley and itsaccessories embodying the invention, a portion of the cup-shaped fittingat the upper end of the trolley-pole being broken away. Fig. 2 is asectional elevation of the trolley in a diametrical plane, portions ofthe harp being shown in section. Fig. 3 is a sectional elevation of thetrolley in a central plane at right angles to its axis.

The body of the trolley is made up of two principal parts A and A in theform of circular disks having centrally-located threaded openings andhaving near their peripheries annular flanges a and a, which when theparts are assembled telescope with each other and form a tight joint.The flanges a and a are a suflicient distance from the peripheries ofthe disks to leave a peripheral groove in which is arranged a ring B,preferably of copper, which contacts with and takes the current from thewire. This ring may contact directly with the flange a, but preferablyit is supported by screws C, which pass through the ring B and flanges aand 0. 1nto the ends of a bar or spoke D, which is located within thehollow chamber E of the trolley and is integral with a shaft F, withwhich the disks A and A have threaded engagement. The screws C and theshaft F constitute the means for connecting the two disks. The screwsalso serve as conductors for conveying the current from the ring B tothe spoke D, from which latter it is taken by brushes G, having contactwith a collecting-ring H, carried by a shaft I, said shaft being locatedwithin the shaft F and ball-bearings J being arranged between them. Thecentral art of the diametrical bar D and of the sha t F is cut away toaccommodate the collecting-ring H and permit the brushes to have contactwith it at diametrically opposite points. The collecting-ring is rigidlysecured to the shaft I by means of a pin h. The ends of the shaft I passthrough the sides K of the harp and have nuts L turned onto them for thepurpose of holding the parts in place. The harp preferably consists oftwo parts K, which at their lower ends are jointed together by' means ofa pin M, passing through the cupshaped fitting N, which is fixedlyattached to the extremity of the pole O. This permits the harp tooscillate slightly in a direction transverse to the line of travel inorder that the trolley may follow deflections inthe contacting wire.This movement of the harp is, however, limited by lugs P on its sides,which are adapted to contact with the top of the fitting N.

At itssides the spoke D contacts with the inner faces of the disks A andA, while at its ends it contacts with the inner surface of the flange aat diametrically opposite points, thus dividing the chamber E into twoequal parts. In order that these two parts may communicate with eachother, notches d are formed in the ends of the spoke. The chamber E isalso used for the purpose of carrying the lubricant,'so that the bearingmay at all times be supplied with the necessary quantity of oil. Inpractice it is proposed to charge the chamber with only a very smallquantity of oil, which under the influence of centrifugal force willdistribute itself evenly over the interior surface of the flange a whilethe trolley is revolving and which when the trolley is at rest will findits Way to the bearing and to the collecting-ring.

The object in leading the current through the brushes, thecollecting-ring, and the central shaft is to avoid burning out theballbearings. It will be understood that if the current were led throughthe ball-bearings a loose ball would cause sparking and would quicklydestroy the bearings.

hat I claim as new, and desire to secure by Letters Patent, is-

1. A trolley having an internal chamber, a collecting-ring within thechamber, means for conducting the current to the collecting-ring, saidmeans consisting of a diametrical bar or spoke and brushes carriedthereby and contacting with the collecting-ring, substantially asdescribed.

2. A trolley having a peripheral groove and an internal chamber, a ringarranged in the groove and adapted to contact with the Patented Oct. 9,1906. I

trolley-wire, a collecting-ring within the chamber and means forconducting the current to the collecting-ring, said means includingscrews contacting with the peripheral ring, a diametrical bar or spokecontacting with said screws and brushes carried by the bar or spoke andcontacting with the collecting-ring, substantially as described.

3. A trolley having two disks with central openings, telescoping flangesby which the disks are held apart to provide an internal chamber, acentral shaft, a collecting-ring on said shaft and brushes within thechamberfor conducting the current to the collectingring, substantiallyas described.

4. A trolley having two disks provided with telescoping annular flangesby which they are spaced apart to provide an internal chamber, aremovable ring surrounding the outerilange and located between theperipheries of the disks, a diametrical bar arranged Within the chamber,brushes carried by the bar, a collecting-ring with which the brushescontact and a shaft carrying the collectingring, substantially asdescribed.

5.. The combination with a trolley-wheel,

of a harp by which it is carried, said harp be- 1 ing made of two partsor sides, a cup-shaped fitting fixedly attached to the end of thetrolley-pole, into which the lower ends of said two parts or sidesextend, a pivot-pin supported by said fitting, in a position parallelwith the line of travel, upon which the lower ends of said parts orsides are pivoted, clearance being left between the sides of, the harpand the fitting, whereby the harp as a whole may be oscillated in adirection transverse to the line of travel, or its two sides movedtoward and from each other for putting the T trolley-wheel in place orremoving it from its position between the two. sides, the two sides ofthe harp being adapted to contact with the sides of the fitting forlimiting its oscillation, a shaft passingthrough the trolley and the twosides of the harp, and means on said shaft for holding the two sides ofthe harp together, substantially as described.

6. A trolley having two disks with central openings, telescoping flangesby which the disks are held apart to. provide an internal chamber, acentral shaft, a collecting-ring, on the shaft, ball-bearings about saidshaft, and brushes within the chamber for conducting the current to thecollecting-ring, substantially as described.

HENRY WEST.

YVitnesses:

O. S. RICHARDS, P. A. THOMAS.

